<template>
  <div class="main">
    <a-form
      id="formLogin"
      class="user-layout-login"
      ref="formLogin"
      :form="form"
      @submit="handleSubmit"
    >
      <a-tabs
        :activeKey="customActiveKey"
        :tabBarStyle="{ textAlign: 'center', borderBottom: 'unset' }"
        @change="handleTabClick"
      >
        <a-tab-pane key="tab1" tab="账号密码登录">
          <a-form-item>
            <a-input
              size="large"
              type="text"
              placeholder="账户: admin"
              v-decorator="[
                'username',
                {rules: [{ required: true, message: '请输入帐户名或邮箱地址' }, { validator: handleUsernameOrEmail }], validateTrigger: 'change', initialValue: 'admin'}
              ]"
            >
              <a-icon slot="prefix" type="user" :style="{ color: 'rgba(0,0,0,.25)' }"/>
            </a-input>
          </a-form-item>

          <a-form-item>
            <a-input
              size="large"
              type="password"
              autocomplete="false"
              placeholder="密码: admin"
              v-decorator="[
                'password',
                {rules: [{ required: true, message: '请输入密码' }], validateTrigger: 'blur', initialValue: 'admin'}
              ]"
            >
              <a-icon slot="prefix" type="lock" :style="{ color: 'rgba(0,0,0,.25)' }"/>
            </a-input>
          </a-form-item>
        </a-tab-pane>
        <a-tab-pane key="tab2" tab="手机号登录">
          <a-form-item>
            <a-input size="large" type="text" placeholder="手机号" v-decorator="['mobile', {rules: [{ required: true, pattern: /^1[34578]\d{9}$/, message: '请输入正确的手机号' }], validateTrigger: 'change'}]">
              <a-icon slot="prefix" type="mobile" :style="{ color: 'rgba(0,0,0,.25)' }"/>
            </a-input>
          </a-form-item>

          <a-row :gutter="16">
            <a-col class="gutter-row" :span="16">
              <a-form-item>
                <a-input size="large" type="text" placeholder="验证码" v-decorator="['captcha', {rules: [{ required: true, message: '请输入验证码' }], validateTrigger: 'blur'}]">
                  <a-icon slot="prefix" type="mail" :style="{ color: 'rgba(0,0,0,.25)' }"/>
                </a-input>
              </a-form-item>
            </a-col>
            <a-col class="gutter-row" :span="8">
              <a-button
                class="getCaptcha"
                tabindex="-1"
                :disabled="state.smsSendBtn"
                @click.stop.prevent="getCaptcha"
                v-text="!state.smsSendBtn && '获取验证码' || (state.time+' s')"
              ></a-button>
            </a-col>
          </a-row>
        </a-tab-pane>
      </a-tabs>

      <a-form-item>
        <a-checkbox v-decorator="['rememberMe']">自动登录</a-checkbox>
        <router-link
          :to="{ name: 'recover', params: { user: 'aaa'} }"
          class="forge-password"
          style="float: right;"
        >忘记密码</router-link>
      </a-form-item>

      <a-form-item style="margin-top:24px">
        <a-button
          size="large"
          type="primary"
          htmlType="submit"
          class="login-button"
          :loading="state.loginBtn"
          :disabled="state.loginBtn"
        >确定</a-button>
      </a-form-item>

      <div class="user-login-other">
        <span>其他登录方式</span>
        <a>
          <a-icon class="item-icon" type="alipay-circle"></a-icon>
        </a>
        <a>
          <a-icon class="item-icon" type="taobao-circle"></a-icon>
        </a>
        <a>
          <a-icon class="item-icon" type="weibo-circle"></a-icon>
        </a>
        <router-link class="register" :to="{ name: 'register' }">注册账户</router-link>
      </div>
    </a-form>

  </div>
</template>

<script lang="ts">
  import {Component, Vue } from "vue-property-decorator";
  import {Action} from 'vuex-class';
  import {get2step, getSmsCaptcha} from '@/api/login';
  import {timeFix} from '@/utils/util';
  import * as md5 from 'md5';

  @Component({
    components: {},
  })
  export default class LoginComponent extends Vue {
	@Action('Login')
	Login;
	@Action('Logout')
	Logout;
	
	customActiveKey:string='tab1';
	loginBtn:boolean=false;
	loginType:number=0;
	requiredTwoStepCaptcha=false;
	stepCaptchaVisible=false;
	form:any;
	
	state={
	  time: 60,
	  loginBtn: false,
	  // login type: 0 email, 1 username, 2 telephone
	  loginType: 0,
	  smsSendBtn: false
	}
	
	constructor() {
	  super();
	}
	
	beforeCreate() {
	  this.form = this.$form.createForm(this);
	}
	
	
	created () {
	
	  get2step({ })
	    .then(res => {
	      let reponse=res as any;
	      this.requiredTwoStepCaptcha = reponse.result.stepCode
	    })
	    .catch(() => {
	      this.requiredTwoStepCaptcha = false
	    })
	}
	
	
	handleUsernameOrEmail (rule, value, callback) {
	  const { state } = this
	  const regex = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+((\.[a-zA-Z0-9_-]{2,3}){1,2})$/
	  if (regex.test(value)) {
	    state.loginType = 0
	  } else {
	    state.loginType = 1
	  }
	  callback()
	}
	
	handleTabClick (key) {
	  this.customActiveKey = key
	  // this.form.resetFields()
	}
	
	handleSubmit (e) {
	  e.preventDefault()
	  const {
	    form: { validateFields },
	    state,
	    customActiveKey,
	    Login
	  } = this
	
	  state.loginBtn = true
	
	  const validateFieldsKey = customActiveKey === 'tab1' ? ['username', 'password'] : ['mobile', 'captcha']
	
	  validateFields(validateFieldsKey, { force: true }, (err, values) => {
	    if (!err) {
	      console.log('login form', values)
	      const loginParams = { ...values }
	      delete loginParams.username
	      loginParams[!state.loginType ? 'email' : 'username'] = values.username
	      loginParams.password = md5(values.password)
	      Login(loginParams)
	        .then((res) => this.loginSuccess(res))
	        .catch(err => this.requestFailed(err))
	        .finally(() => {
	          state.loginBtn = false
	        })
	    } else {
	      setTimeout(() => {
	        state.loginBtn = false
	      }, 600)
	    }
	  })
	}
	getCaptcha (e) {
	  e.preventDefault()
	  const { form: { validateFields }, state } = this
	
	  validateFields(['mobile'], { force: true }, (err, values) => {
	    if (!err) {
	      state.smsSendBtn = true
	
	      const interval = window.setInterval(() => {
	        if (state.time-- <= 0) {
	          state.time = 60
	          state.smsSendBtn = false
	          window.clearInterval(interval)
	        }
	      }, 1000)
	
	
	      getSmsCaptcha({ mobile: values.mobile }).then(res => {
	        let response= res as any;
	        setTimeout(()=>{
	          this.$message.loading('验证码发送中..', 0)
	        }, 2500)
	        this.$notification['success']({
	          message: '提示',
	          description: '验证码获取成功，您的验证码为：' + response.result.captcha,
	          duration: 8
	        })
	      }).catch(err => {
	        setTimeout(()=>{
	          this.$message.loading('验证码发送中..', 0)
	        }, 1)
	        clearInterval(interval)
	        state.time = 60
	        state.smsSendBtn = false
	        this.requestFailed(err)
	      })
	    }
	  })
	}
	stepCaptchaSuccess () {
	  this.loginSuccess()
	}
	
	stepCaptchaCancel () {
	  this.Logout.then(() => {
	    this.loginBtn = false;
	    this.stepCaptchaVisible = false;
	  })
	}
	
	loginSuccess (res?:any) {
	  console.log(res);
	
	  this.$router.push({ name: 'dashboard' });
	  // 延迟 1 秒显示欢迎信息
	  setTimeout(() => {
	    this.$notification.success({
	      message: '欢迎',
	      description: `${timeFix()}，欢迎回来`
	    })
	  }, 1000)
	}
	requestFailed (err) {
	  this.$notification['error']({
	    message: '错误',
	    description: ((err.response || {}).data || {}).message || '请求出现错误，请稍后再试',
	    duration: 4
	  })
	}
  }

</script>

<style lang="less" scoped>
.user-layout-login {
  label {
    font-size: 14px;
  }

  .getCaptcha {
    display: block;
    width: 100%;
    height: 40px;
  }

  .forge-password {
    font-size: 14px;
  }

  button.login-button {
    padding: 0 15px;
    font-size: 16px;
    height: 40px;
    width: 100%;
  }

  .user-login-other {
    text-align: left;
    margin-top: 24px;
    line-height: 22px;

    .item-icon {
      font-size: 24px;
      color: rgba(0, 0, 0, 0.2);
      margin-left: 16px;
      vertical-align: middle;
      cursor: pointer;
      transition: color 0.3s;

      &:hover {
        color: #1890ff;
      }
    }

    .register {
      float: right;
    }
  }
}
</style>
